SOLUTION: (1-x)/2 = 7 2[1-x)/2 = 7]2 2-2x = 14 -2x = 12 x = -6

Algebra ->  Expressions-with-variables -> SOLUTION: (1-x)/2 = 7 2[1-x)/2 = 7]2 2-2x = 14 -2x = 12 x = -6      Log On


   

Question 219424: (1-x)/2 = 7
2[1-x)/2 = 7]2
2-2x = 14
-2x = 12
x = -6
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
No! In your second step the 2 divides out on the left side of the equation!

It should look like this:

(1-x)/2 = 7
2[(1-x)/2] = 7*2
1-x = 14
-x = 13
x = -13

Check your answer:
%281-%28-13%29%29%2F2
14%2F2
7

R^2

Dr. Robert J. Rapalje